What happens to the molecules in water as it freezes?

The average kinetic energy of the molecules decreases.

The average kinetic energy of the molecules increases.

The molecules give off heat.

The molecules move faster.

A container of gas is at a pressure of 3.7 x 105 pa. how much work is done by the gas if its volume expands by 1.6 m3? show your work.

In which of the following situation is work being done? A car is pushed but does not budge. A weightlifter holds a barbell over his head. A wagon is pulled at an angle of 30 degrees to the horizontal. A swimmer treads water for 15 minutes.

What is an instrument commonly used to measure wind speed? a. aneroid barometer b. mercury barometer c. wind vane d. anemometer

Water (2290 g) is heated until it just begins to boil. if the water absorbs 5.57*105 j of heat in the process, what was the initial temperature of the water?

A car of mass m push = 1200 kg is capable of a maximum acceleration of 6.00 m / s 2. If this car is required to push a stalled car of mass m stall = 1750 kg, what is the maximum magnitude of the acceleration a of the two‑car system? a = 0.62 m / s 2

In your own words describe an interaction between the chromosphere and the hydrosphere

Ming drives across Arizona in the middle of July. She drives for two hours in the hot, desert sun before stopping for some snacks. Which statement describes the condition of the tires on Ming's car when she stops? A.

Why is it harder to get something moving than to keep it moving?

An advertisement for a new fish food claims that lab studies show that fish grew three inches in three weeks while eating the food. Travis wondered if the food was worth the extra cost. To evaluate the claim in the advertisement, Travis should

What will happen to an astronaut when the jets produce these four forces